Snowplow



Feb. 12' 19240 7 1,483,382

G. RICHARDSON SNOWPLOW Filed March 22, '1925 INVENTOR 650 ?65 lF/dY/AROSO/V ATTORNEY Patented F eb. 12, 1924.

ca emares:

titans GEORGE RICHARDSQN, OEPI'ITSFIELD, MASSACHUSETTS;

sNowrLow.

Application filed March 22, 1923.

To all whom it may concern.

Be it known thatI, GEORGE RICHARDSON, a citizen of the United States, residing at Pittsfield, State ofMassachusetts, have invented new and useful Improvements in Snowplows, of which the following is a specificatlon.

This invention relates to new and" certain useful improvements vin snow plows, the 1" peculiarities of hich will be fully described and claimed.

The main object of my invention is to provide a snow plow with a movable center blade that can be swung across the face of 1-": the plow and set at any desired angle. Heretofore the common variety of plows have been used with a V-shaped blade'th'at would throw the snow onboth sides of the plow, thus necessitating going over the road 2 twice to clear it of the accumulated snow. With my improved snow plow I do away with this disadvantage by placing the mov able blade on an angle in relation to the plow so that all of the snow gathered by the plow may be thrown on one side of the road only.

Other advantages of my improved snow plow will be apparent when explained in connection with the accompanying drawing in which Figure 1 is a plan view with the cross braces broken away to show the device more clearly, and Figure 2 is an elevation partly in section with the back brace broken away to show the construction of the device more clearly.

Arising from the runners 1 and passing through the bed plate 2 are four upright supports 5. These supports are secured to the runners and are braced at the upper ends by means of the cross bars 7 and 8. The cross bar 7 is used to brace the two back supports, while the two forward supports are braced by the bars 8 that run diagonally to the center support 17. These bars are secured to the upright supports by means of a nut 6. The center support 17 is encased in a tube 22 and remains stationary while the tube is free to rotate about the support. Attached to the tube 22 are two supports 18, and these supports are also attached to the movable blade 12. The tube has two sprockets 16 attached thereto and these sprockets also rotate with the tube. At the upper ends of the two forward supports are two sheaves 14: that are rigidly attached thereto. Arising from the forward end of the movable the chain 19.

Serial No, 626,931.

blade is'a standard 13 to which is attached a chain 15; this chain is rigidly secured to the movable blade and passes through the sheaves and around the upper sprocket 16.

A back brace 10, which isformed in all} shape, passes around the center support and; tube 22, and thisiback brace is attached to the rear supportsby meansof a clevis 11 which is peened over on the endsthatj, pass is provided with an opening to allow the free operation of the lower sprocket 16 and The lower and forward end ofthe snow plow is provided witha scraper blade 21 which is slotted and held in place to the runners by'means of-two of the bolts 20. The slots in the scraper blade provide an easy means to remove the scraper so that it may be repaired if found necessary, or so that a new scraper blade may be inserted. The scraper blade 21 and the two cross bars 3 and t provide means to rigidly brace the runners 1. t

The bed plate 2 is bent down and over the runners at the forward end. The bed plate also acts as a brace for the runners and a support for the scraper blade 21; the two center bolts 20 passing through the bed plate and the scraper blade 21.

The operation of the device is as follows: The snow plow is driven by a tractor engine, which is not shown on the drawing. The center blade 12 is first set at any desired angle by operating the chain 19 which may be attached to a drum on the tractor engine. or by other means. This motion will be imparted to the tube on which the sprockets 16 are mounted, and the chain 15 will move the center blade 12 to the position desired. As the snow is gathered by the scraper 21 and forced back over the bed plate it will follow along the center blade until it reaches,

the back brace; after the snow reaches the back brace it will follow the angle of the brace and finally be deposited off the side of the snow plow.

A salient feature ofthe device is that it may be driven very close to the curb of a street, or the line of a building and the snow along the curb, or the line of the building, be easily removed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A snow plow consisting of two runthrough the back brace! The backbrace ners, cross bars connected to said runners, a bed plate, four upright supports arising from said bed plate, a centerupri ht support arising from the bed plate an incased in a tube, bars connected to the top of said supports, a tube encasing the center upright support and tWo sprockets mounted thereon, a sheave rigidly connected to thetop of the two forward supports, a scraper blade connected ,to the forward ends of the runners and to the bed plate, aV shaped back brace secured to the two rear supports by means of a clevis, a movable center blade and a standard secured thereto and arising from the forward end .of said center blade, and a chain connected to the said standard, supports attached to the movable center blade and the upright tube encasing the center upright support.

2. A snow plow consisting of two runners, cross bars connected to said runners, a bed plate bent over on the forward. end and secured to the runners, four upright supports arising from the bed plate and I provided with a shoulder on the top for the cross bars, a center upright support provided with a shoulder onthe top for the cross bars, said support encased in a tube,

bars connected to the top of said supports, a tube encasing the center upright support and said tube free to rotate around the center support, sprockets so mounted on the tube as to rotate with it, sheaves rigidly connected to the top of the two forward upright supports, a scraper blade provided with slots to facilitate its removal, and said scraper blade connected to the forward ends of the runners and to the bed plate, a V shaped back brace secured to the two rear upright supports and provided with openings for the free operation of the lower sprocket and chain and the center blade supports, a movable center blade rigidly secured to the tube encasing the center upright support, a standard secured to the center blade and a chain attached thereto, said chain passing through the sheaves and around the upper sprocket mounted on the tube encasing the center upright support, supports: attached to the movable center blade and the upright tube encasing the center upright support. I

In testimony whereof I have affixed my signature.

GEORGE RICHARDSON. 

